twoway (hist abs_diff_pf if n_ud==1 & S_pds==1, yla(,nogrid) frac lcolor(gs12) fcolor(none)), graphregion(color(white)) ///
 legend(off) xtitle("Absolute Value of Difference as a Share of True Value", size(small)) ///
 xline(0.1777395  0.4502312, lcolor(black) lpattern(-)) text(0.15 0.27 "Med:0.18" 0.15 0.55 "90th:0.45" , size(vsmall) )
graph export "${figures}\FigureE3.pdf", replace 